FIELD: physics.
SUBSTANCE: in the antenna module, the front matching layer is made half-wave from a metal with high sound speed, the active piezoceramic disc is immersed into the working medium by said front matching metal layer through a half-wave layer of liquid whose acoustic characteristics are close to acoustic characteristics of the working medium.
EFFECT: high accuracy of pulsed Doppler log and reduced size of the antenna module.
1 dwg
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Authors
Dates
2013-02-27—Published
2011-09-13—Filed